Depends how far you live from control centre to hear their messages but planes overhead you should be able to hear with normal antenna if you are lucky enough to live where planes change frequency, if you want to listen to transmissions from further afield you will need an airband dipole antenna to put in your loft

Depends how far you live from control centre to hear their messages but planes overhead you should be able to hear with normal antenna if you are lucky enough to live where planes change frequency, if you want to listen to transmissions from further afield you will need an airband dipole antenna to put in your loft